Home / 198,478.75-273,899.17-107,835.46

Finding the Fourth Proportional to 198,478.75, 273,899.17 and 107,835.46

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Solution

The fourth proportional to 198,478.75, 273,899.17 and 107,835.46 is: 148,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,478.75 : 273,899.17 = 107,835.46 : x
  2. Step 2: Convert to fraction form
    198,478.75/273,899.17 = 107,835.46/x
  3. Step 3: Cross multiply
    198,478.75x = 273,899.17 × 107,835.46
  4. Step 4: Simplify right side
    198,478.75x = 29,536,042,990.57
  5. Step 5: Solve for x
    x = 29,536,042,990.57/198,478.75
  6. Step 6: Final answer
    x = 148,812.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.